Locke (traditional Chinese: 樂居; simplified Chinese: 乐居; pinyin: Lèjū; Jyutping: Lok6geoi1), also known as Locke Historic District, is an unincorporated community in California's Sacramento – San Joaquin River Delta built by Chinese immigrants during the early 20th century. It was originally named Lockeport after George Locke, who owned the land that the town was built upon at a time when Chinese people were not allowed to own land.